GLACIERS OF HARRIMAN FIORD AND PORT WELLS 321
the main glacier, forming a weak medial moraine which terminates near the eastern side of the glacier terminus. Near the western margin of Barry Glacier is an unusually strong, black medial moraine, separated from the valley wall by d, strip of clean ice and by a strong black lateral moraine.
Cascade Glacier (PI. CXXVIII), heading in 6000 to 8000 foot cirques on Mt. Gannett, descends over the lip of its hanging valley at a level of about 3000 feet with a lower step at 2100 feet. The western side of Cascade Glacier has a dark lateral moraine which becomes the western lateral of Barry Glacier below their confluence. The eastern side has none.
Just above the entrance of Cascade Glacier the edge of Barry Glacier is forced up on a rock surface over which its western lateral moraine rides with a fine ribboned effect; but below t-hia point the broad black moraine all but disappears, showing on the terminal ice cliff only as a faint, narrow band, slightly inclined. This disappearance of the moraine seems to be due to sliding down of fragments in the more severely crevassed lower end of the Barry Glacier where it is joined by the steeply-descending Cascade Glacier.
Below their confluence the Cascade Glacier is compressed to half width by the stronger Barry Glacier, as the medial moraines prove. A broad medial moraine which remains nearly vertical at the terminal ice cliff forms a striking contrast to the inclined ends of the Harvard Glacier moraines. The Barry and Harvard and the Cascade and Rad-cliffe Glaciers have similar slopes; but the Radcliffe cascading glacier retains nearly full width at the ice front, compressing the main Harvard Glacier to half width, while in Haniman Fiord these relationships are reversed.
There are several small glaciers near the Barry Glacier. The group between Mt. Coville and Mt. Curtis 1 terminate SOOO feet above sea level. Two in cirques and one in a hanging valley between Barry and Serpentine Glaciers terminate 2350 to 4000 feet above sea level.
Recession. The position of Barry Glacier in 1794 was apparently about the same as in 1887, judging by Vancouver's map. We have very little information about the condition of the glacier at this early date, Lieutenant Whidbey speaking of Barry Arm as "a bay, about a league and a half deep toward the N. N. W., in which were seen several shoals and much ice."
Applegate made no description of Barry Glacier in 1887. He went no nearer to it than Pt. Pakenham, marking the termination in about the same position as shown on the map of 1898, and showing no indication of the existence of Harriman Fiord.
Mendenhall relates that in 1898 Barry Glacier was more extensive than either Harvard or Yale Glaciers. Glenn, who in the same year named it for Col. Thomas H. Barry, said that it was "one of the most formidable as well as the most interesting" of the glaciers that they saw. Coming from it they saw "immense icebergs that had evidently broken off from the glacier. Many of these were from ten to twenty times as large as our boat." 2 When they were near Yale Glacier, alternating two or three times an hour with the roar of snowslides, a "noise caused by the falling of the immense ice floes from Barry Glacier, could be heard like the rumbling of distant thunder and which
i Named in 1910 for E. C. Curtis who took many excellent photographs of this and other Prince William Sound glaciers, at the time of his visit with the Harriman Expedition in 1899. * The Salmo, a small steamer. 21